Meeting Banner
Abstract #4809

An interleaved opposing monopole transmit-receive array for 7T brain imaging

Gang Chen 1 , Martijn Cloos 1 , and Graham Wiggins 1

1 The Bernard and Irene Schwartz Center for Biomedical Imaging, Department of Radiology, New York University School of Medicine, New York, NY, United States

At high field, electric dipole antennas are seeing increasing use. When placed close to a relatively high dielectric material such as the body the self-resonant length shortens somewhat, but for 7T head imaging this still comes out to an inconvenient length of 40 cm or more. We describe here a modified monopole antenna where the ground plane is replaced by a strip of conductor. These are arranged in an 8 element array which allows alternating monopoles to be driven from opposing ends of the array, which extends excitation into inferior brain regions while also providing diverse B1 profiles along Z.

This abstract and the presentation materials are available to members only; a login is required.

Join Here